@online{Wiki:ManchesterEncodingPng,
  author = {Dysprosia},
  organization = {Wikipedia},
  title = {Manchester Code},
  date = {2004-02-22},
  url = {http://commons.wikimedia.org/wiki/File:Manchester_code.png}
}

@online{ISO:1443-2,
  organization = {ISO},
  title = {ISO/IEC 14443-2},
  date = {1999-03-26},
  url = {http://www.waazaa.org/download/fcd-14443-2.pdf}
}